Event Handler for dynamic created control

Question

Hello all,
I dynamically generate asp:table in  selectedindex change event of ExamType dropdown.
At last column in row of table i add a submit button. I add event handler in that button like- 
  btnSave.Click += new EventHandler(this.btnSaveClick);

But it is not working .Plz give any suggestion. I m attaching a snapshot of this prob.